168
FNCA52 TJSJ 271930
FWFSJU
FIRE WEATHER PLANNING FORECAST FOR PUERTO RICO
NATIONAL WEATHER SERVICE SAN JUAN PR
330 PM AST SAT JUN 27 2026
DISCUSSION
NO FIRE DANGER IS EXPECTED TODAY.
PRZ014-280800-
SOUTHEAST COASTAL PLAINS-
330 PM AST SAT JUN 27 2026
TONIGHT SUN SUN NIGHT MON
CLOUD COVER MCLEAR CLEAR MCLEAR CLEAR
PRECIP TYPE SHOWERS NONE SHOWERS SHOWERS
CHANCE PRECIP (%) 10 0 10 40
TEMP (24H TREND) 73 (-2) 92 (+3) 74 91
RH % (24H TREND) 88 (+4) 45 (-10) 92 53
WIND 20FT/EARLY(MPH) E 12 E 16 E 12 E 13
WIND 20FT/LATE(MPH) E 13 SE 16 E 9 SE 13
MIXING HGT(FT-AGL/MSL) 5160 4590
TRANSPORT WND (MPH) E 17 SE 14
VENT RATE (KT-FT) 77400 55080
DISPERSION 5 5
DSI 5 6 4 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ015-280800-
SOUTHERN HILLS-
330 PM AST SAT JUN 27 2026
TONIGHT SUN SUN NIGHT MON
CLOUD COVER MCLEAR MCLEAR MCLEAR CLEAR
PRECIP TYPE SHOWERS SHOWERS SHOWERS TSTMS
CHANCE PRECIP (%) 0 0 10 40
TEMP (24H TREND) 69 (-3) 89 (+5) 70 88
RH % (24H TREND) 97 (+4) 58 (-10) 99 64
WIND 20FT/EARLY(MPH) E 12 E 12 E 10 E 11
WIND 20FT/LATE(MPH) E 12 SE 12 E 9 SE 11
MIXING HGT(FT-AGL/MSL) 5930 5280
TRANSPORT WND (MPH) E 16 SE 13
VENT RATE (KT-FT) 83020 58080
DISPERSION 5 5
DSI 4 6 3 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ016-280800-
NORTH COASTAL PLAINS-
330 PM AST SAT JUN 27 2026
TONIGHT SUN SUN NIGHT MON
CLOUD COVER MCLEAR MCLEAR MCLEAR CLEAR
PRECIP TYPE SHOWERS SHOWERS SHOWERS TSTMS
CHANCE PRECIP (%) 10 10 10 40
TEMP (24H TREND) 71 (-4) 91 (+2) 74 91
RH % (24H TREND) 98 (+3) 58 (-9) 99 63
WIND 20FT/EARLY(MPH) E 16 E 14 E 20 E 12
WIND 20FT/LATE(MPH) E 11 E 21 E 12 E 16
MIXING HGT(FT-AGL/MSL) 5490 4690
TRANSPORT WND (MPH) E 16 E 12
VENT RATE (KT-FT) 76860 46900
DISPERSION 5 5
DSI 5 6 5 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ017-280800-
NORTHERN HILLS-
330 PM AST SAT JUN 27 2026
TONIGHT SUN SUN NIGHT MON
CLOUD COVER CLEAR MCLEAR CLEAR CLEAR
PRECIP TYPE NONE SHOWERS NONE TSTMS
CHANCE PRECIP (%) 0 30 0 70
TEMP (24H TREND) 70 (-2) 90 (+3) 71 89
RH % (24H TREND) 99 (+1) 59 (-10) 100 68
WIND 20FT/EARLY(MPH) E 12 E 12 E 16 E 10
WIND 20FT/LATE(MPH) E 8 E 17 E 9 E 12
MIXING HGT(FT-AGL/MSL) 6810 5520
TRANSPORT WND (MPH) E 14 SE 8
VENT RATE (KT-FT) 81720 38640
DISPERSION 5 5
DSI 3 6 3 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ018-280800-
WEST COAST-
330 PM AST SAT JUN 27 2026
TONIGHT SUN SUN NIGHT MON
CLOUD COVER MCLEAR MCLEAR CLEAR CLEAR
PRECIP TYPE NONE SHOWERS NONE TSTMS
CHANCE PRECIP (%) 0 20 0 50
TEMP (24H TREND) 71 (-3) 92 (+2) 74 92
RH % (24H TREND) 98 (+3) 57 (-9) 98 63
WIND 20FT/EARLY(MPH) E 12 E 13 E 12 E 13
WIND 20FT/LATE(MPH) E 12 E 14 E 11 E 13
MIXING HGT(FT-AGL/MSL) 4710 4130
TRANSPORT WND (MPH) E 13 SE 10
VENT RATE (KT-FT) 51810 37170
DISPERSION 5 5
DSI 4 6 3 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ019-280800-
EASTERN INTERIOR-
330 PM AST SAT JUN 27 2026
TONIGHT SUN SUN NIGHT MON
CLOUD COVER MCLEAR MCLEAR PCLDY CLEAR
PRECIP TYPE SHOWERS SHOWERS SHOWERS TSTMS
CHANCE PRECIP (%) 10 10 40 40
TEMP (24H TREND) 71 (-3) 90 (+4) 72 89
RH % (24H TREND) 98 (+3) 59 (-6) 100 65
WIND 20FT/EARLY(MPH) E 13 SE 12 E 11 E 12
WIND 20FT/LATE(MPH) E 13 E 13 E 10 E 13
MIXING HGT(FT-AGL/MSL) 6530 5990
TRANSPORT WND (MPH) SE 16 SE 14
VENT RATE (KT-FT) 91420 71880
DISPERSION 5 5
DSI 4 6 3 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ022-280800-
LUQUILLO MOUNTAIN RANGE-
330 PM AST SAT JUN 27 2026
TONIGHT SUN SUN NIGHT MON
CLOUD COVER PCLDY MCLEAR PCLDY CLEAR
PRECIP TYPE SHOWERS SHOWERS SHOWERS TSTMS
CHANCE PRECIP (%) 20 10 60 60
TEMP (24H TREND) 69 (-2) 85 (+5) 69 85
RH % (24H TREND) 100 (+2) 67 (-7) 100 71
WIND 20FT/EARLY(MPH) E 10 SE 11 E 9 E 11
WIND 20FT/LATE(MPH) E 10 E 12 E 8 E 11
MIXING HGT(FT-AGL/MSL) 4530 4180
TRANSPORT WND (MPH) SE 17 SE 15
VENT RATE (KT-FT) 67950 54340
DISPERSION 5 5
DSI 5 6 5 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ023-280800-
CENTRAL MOUNTAIN RANGE-
330 PM AST SAT JUN 27 2026
TONIGHT SUN SUN NIGHT MON
CLOUD COVER CLEAR MCLEAR CLEAR CLEAR
PRECIP TYPE NONE SHOWERS NONE TSTMS
CHANCE PRECIP (%) 0 30 0 70
TEMP (24H TREND) 67 (-3) 88 (+6) 68 87
RH % (24H TREND) 99 (+2) 61 (-13) 100 70
WIND 20FT/EARLY(MPH) E 8 E 10 E 9 E 8
WIND 20FT/LATE(MPH) E 6 SE 10 E 8 E 9
MIXING HGT(FT-AGL/MSL) 7370 6260
TRANSPORT WND (MPH) SE 12 SE 9
VENT RATE (KT-FT) 73700 50080
DISPERSION 5 5
DSI 2 6 2 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ024-280800-
CAYEY MOUNTAIN RANGE-
330 PM AST SAT JUN 27 2026
TONIGHT SUN SUN NIGHT MON
CLOUD COVER MCLEAR MCLEAR PCLDY CLEAR
PRECIP TYPE SHOWERS SHOWERS SHOWERS TSTMS
CHANCE PRECIP (%) 20 10 40 60
TEMP (24H TREND) 70 (-1) 85 (+3) 70 84
RH % (24H TREND) 100 (+2) 67 (-4) 100 72
WIND 20FT/EARLY(MPH) E 10 E 11 E 9 E 10
WIND 20FT/LATE(MPH) E 10 E 11 E 8 E 10
MIXING HGT(FT-AGL/MSL) 5420 5040
TRANSPORT WND (MPH) E 17 SE 14
VENT RATE (KT-FT) 81300 60480
DISPERSION 5 5
DSI 4 6 4 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ025-280800-
VIEQUES-
330 PM AST SAT JUN 27 2026
TONIGHT SUN SUN NIGHT MON
CLOUD COVER MCLEAR MCLEAR PCLDY CLEAR
PRECIP TYPE SHOWERS SHOWERS SHOWERS TSTMS
CHANCE PRECIP (%) 30 10 60 50
TEMP (24H TREND) 76 (-1) 89 (+2) 76 89
RH % (24H TREND) 88 (0) 61 (-2) 94 62
WIND 20FT/EARLY(MPH) E 16 E 16 E 13 E 13
WIND 20FT/LATE(MPH) E 16 E 13 E 13 E 14
MIXING HGT(FT-AGL/MSL) 3220 2830
TRANSPORT WND (MPH) E 21 SE 17
VENT RATE (KT-FT) 57960 42450
DISPERSION 5 5
DSI 6 6 6 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ026-280800-
CULEBRA-
330 PM AST SAT JUN 27 2026
TONIGHT SUN SUN NIGHT MON
CLOUD COVER MCLEAR MCLEAR PCLDY CLEAR
PRECIP TYPE SHOWERS SHOWERS SHOWERS TSTMS
CHANCE PRECIP (%) 10 10 60 50
TEMP (24H TREND) 77 (-2) 91 (+3) 77 91
RH % (24H TREND) 90 (+3) 60 (-5) 97 62
WIND 20FT/EARLY(MPH) E 16 E 16 E 14 E 14
WIND 20FT/LATE(MPH) E 16 E 13 E 14 E 14
MIXING HGT(FT-AGL/MSL) 3120 2940
TRANSPORT WND (MPH) E 21 SE 18
VENT RATE (KT-FT) 56160 47040
DISPERSION 5 5
DSI 6 6 6 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ027-280800-
SOUTHWEST COASTAL PLAINS AND MONA ISLAND-
330 PM AST SAT JUN 27 2026
TONIGHT SUN SUN NIGHT MON
CLOUD COVER CLEAR CLEAR CLEAR CLEAR
PRECIP TYPE NONE NONE NONE SHOWERS
CHANCE PRECIP (%) 0 0 0 20
TEMP (24H TREND) 74 (-1) 93 (+3) 75 93
RH % (24H TREND) 89 (+4) 46 (-9) 90 51
WIND 20FT/EARLY(MPH) E 14 E 18 G25 E 17 E 18
WIND 20FT/LATE(MPH) E 16 SE 19 G26 E 16 SE 18
MIXING HGT(FT-AGL/MSL) 5040 4570
TRANSPORT WND (MPH) E 21 SE 17
VENT RATE (KT-FT) 90720 68550
DISPERSION 5 5
DSI 5 6 5 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
VIZ001-280800-
SAINT THOMAS AND SAINT JOHN-
330 PM AST SAT JUN 27 2026
TONIGHT SUN SUN NIGHT MON
CLOUD COVER MCLEAR MCLEAR PCLDY CLEAR
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 10 10 60 40
TEMP (24H TREND) 76 (-2) 87 (+1) 76 87
RH % (24H TREND) 90 (+4) 65 (-3) 95 67
WIND 20FT/EARLY(MPH) E 17 E 16 E 14 E 16
WIND 20FT/LATE(MPH) E 17 E 14 E 16 E 16
MIXING HGT(FT-AGL/MSL) 3000 2870
TRANSPORT WND (MPH) E 21 SE 20
VENT RATE (KT-FT) 54000 48790
DISPERSION 5 5
DSI 6 6 6 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
VIZ002-280800-
ST CROIX-
330 PM AST SAT JUN 27 2026
TONIGHT SUN SUN NIGHT MON
CLOUD COVER MCLEAR MCLEAR PCLDY CLEAR
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 10 20 60 40
TEMP (24H TREND) 76 (-2) 88 (+1) 76 88
RH % (24H TREND) 92 (+5) 65 (-1) 97 66
WIND 20FT/EARLY(MPH) E 16 E 16 E 12 E 16
WIND 20FT/LATE(MPH) E 17 E 14 E 13 E 16
MIXING HGT(FT-AGL/MSL) 4220 4480
TRANSPORT WND (MPH) E 20 E 20
VENT RATE (KT-FT) 71740 76160
DISPERSION 5 5
DSI 6 6 6 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
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